This piece is from the window of a portable building. Can't find anything quite this wide. The face is 3/4".
Dave Sr. from SWISCO responded:
July 11, 2018
I'm afraid that we do not have any glazing bead identical to yours. I would start by looking at our 55-164, 55-174, 55-192, or 55-197 to see if you could get any of these to work as a replacement. I'm sorry we cannot offer a closer replacement.